Roofing-tool



1 vUNITED STATES PATENT OFFICE.

WILLIAM G. HYNDMAN, OF CINCINNATI, OHIO.

ROOFlNG-TOOL.

SPECIFICATION forming part of Letters Patent No. 242,778, dated June 14,1881.

Application tiled March 30, 1881.

To all whom t may concern:

Be it known that I,W1LL1AM G. HYNDMAN,

i a citizen of the United States, residing at CinY cinnati, in thecounty of Hamilton and State of Ohio, have invented certain new anduseful Improvements in Roofing-Tools; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the annexed drawings, making a part of this specilication,and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a perspective view of my invention; and Fig.2 an end View, partly in cross-section.

This invention has reference to certain new and usel'ul improvements intools for closing the seams of metallic rooting, and the object thereofis to provide a strong, durable, and practical tool that will possessgreat leverage-4 power in obtaining the pressure required to form aperfect seam, and also perforate or countersink it when so desired.These objects IV attain by the construction substantially as shown inthe drawings and hereinafter described.

In the accompanying drawings, A B 'repre-4 sent the two jaws of the toolconnected together by a continuous hinge, a, extending the entire lengthof the jaws from end to end, thus preventing the springing ot' the endsand insuring a close and perfect seam-throughout the length of sheetmetal located betweeuthe jaws. Each jaw is provided with a lever-handle,C, which are pressed outward or from each other to bring the jawsagainst the seam in closing it. This gives much greater power than whenbringing the handles in a direction toward each other, as in theordinary roofers tongs.

When using the tool it should be understood that the person standsdirectly over it and presses down upon each handle with his whole weightforcing them apart, thereby securing an amount of pressure notprocurable when the handles are pressed together. The inner side of eachjaw has a longitudinal groove, b, so that when the lower edge of saidjaws are brought tightly against the seam to press it together thegrooves prevent the closing of the countersink or bruising of therivets, as the case may be.

(Model.)

The jaws A B, above the grooves b and upon their inner faces, areconstructed in such manner that when the lower edges of the jaws arebrought in contact with the seam that portion ot' said jaws next thehinge will form aspace, c, around the upper edge of the seam. Thisenables the lower part of the seam to be perfectly formed, while theupper portion or edge is left rounding, the space c preventing thesqueezing of the metal too close which would crack the iron, thusenabling me to use an iron which would, it' closed in a seam by a pairof the ordinary tinners or roofers tongs or more punches, d, and thejawB one or more countersinks, e, which may be removed, and the punchand die substituted, when desired, to perforate the seam.

Having now fully described my invention, what I claim as new, and desireto secure by Letters Patent, is

1. The jaws A B, having lever-handles C, said jaws having upon theirinner sides longitudinal grooves b, to prevent the closing of thecountersink or bruising of the rivets, substantially as and for thepurpose described.

2. The jaws A B, arranged transversely to the handles C, and providedwith means, substantially as shown and described, for perforating orcountersinking the seam, for the purpose specied.

3. The jawsA B, provided with suitable handles and having detachablyconnected thereto devices, substantially as described, for perforatingor couutersinking the seam of sheetmetal rooting, for the purpose setforth.

4. The jaws A B, provided with means, substantially as described, forpcrforatin g or countersinkin g the seam, and handles C, arranged asshown and described, to press from each other in closing the jawsagainst the metal seam, substantially as and for the purpose specified.

5. The jaws A B, provided with suitable handles G, said jaws having twoor more punches or similar devices, as shown and described, forperforatin g or countersinking the seam, for the purpose set forth.

6. ThejawsAB,havinglongitudinal grooves b, and punches or points d, andcountersinks e, substantially as and for the purpose set forth.

7. The jaws A B, having lever-handles C, and connected together by acontinuous hinge, a, each jaw having a longitudinal groove, b, andconstructed above the groove, as shown and described, whereby a space,c, is left around the upper edge of' the seam when the jaws are broughttogether against it, substantially as and for the purpose described.

In testimony that I claim the above I have hereunto subscribed rny namein the presence of two witnesses.

WM. G. HYNDMAN.

Witnesses:

J AMES LARKIN, f FRED. A. J oHNsoN.

